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Sunrace 7 Speed Freewheel

Customer Reviews (2)
4 / 5| Write your review
£11.99
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Ratio
£11.99 Please note this product has selling restrictions to your country. was
Manufacturer : 
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Details
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Product Reviews (2)
Questions & Answers (5) Q & A
Details
- Function: Road & MTB
- Speed: 7 Speed
- Number of Teeth: Road 13-25T / MTB 13-28T
- Sprocket Material: Steel
- Spacer Material: Engineering Polymers
- Chain Compatibility: 7.3mm
- Average Weight: 460g

Ratios Choices:
- Road 13-25T = 13 / 15 / 17 / 19 / 21 / 23 / 25T
- MTB 13-28T = 13 / 15 / 17 / 19 / 21 / 24 / 28T

Requires a Shimano type splined freewheel removal tool. (Shimano's own is SJSC part #870)
Specification
Downloads
Download File  
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Product Reviews (2)
Overall Product Rating 4 / 5
First Hyperglide
By
03 Mar 2013
4 / 5
ConsNone
ProsChanges, ratchet
Normally remachine my own from standard freewheels. Greatly simplified by buying this. Would like to see a second option 13 to 21 close ratio version
Me
By
01 Feb 2013
4 / 5
I recommend this product
Proslooks good
i must say that the help over the phone was amazing thanks for all your help he freewheel is great fits a dream and very quiet
Questions & Answers (5)
What Is The Stack Height For This Product Please?
By
28 Sep 2016
I have an old racer with 126mm dropout spacing looks like there's about 39-40mm available for the freewheel, it may be that sunrace's 6 spd is a better option, again not sure what the stack height is there.
SJS Customer Service:
Hi,

This 7spd freewheel has a stack height of 37mm so should hopefully fit okay.

Thanks.
Dear Sir, Is This Item A Suitable Replacement For A Shimano Mftz21.
By
07 Dec 2015
It does not say in the product description if it has Shimano spacing between ratios. The cycle has a Shimano shifter and derailleur.
SJS Customer Service:
Hi,

This freewheel is indeed a suitable replacement for a MF-TZ21 freewheel as it is designed around Shimano gearing.

Thanks.
Will It Fit On An Electric Bike?
By
20 Apr 2015
SJS Customer Service:
Hi,

I'm afraid without some more information I'm going to have no idea if it will fit your bike. This freewheel fits to any wheel that is designed to take a screw on freewheel, if your wheel is like this then it will fit, if its not then it will not fit.

Thanks.
Does This Need To Be Torqued Up When Fitted?
By
09 Feb 2015
If yes, what torque setting would be suitable?
SJS Customer Service:
Hi,

This would not need to be torqued up. As long as it is done up fairly tight initially, pedalling the bike will keep tightening it up as far as it needs to as well as keeping it tight enough.

Thanks.
Is This A Screw On Type Freewheel?
By
25 Feb 2014
SJS Customer Service:
Hi

Yes, this is a 7spd screw-on freewheel.

Regards

Jamie